Using a trial and error method it seems that making a user a member of the
floppy group
enables that user to use fdisk and get a report on the removable media drives attached to the system, including flash sticks.
I would suggest that this might be considered as the default setting for future releases and updates.
It allows the user to manage his/her media without having to know or access root privileges ..... surely a desirable situation?
If I manage to get any further info I will post again.
I have yet to determine if such a user can use fdisk to write to the media, but I expect it may be so.
EDIT Yes I can confirm that I can manipulate the partition table of a flash disk with fdisk after setting any user to be a member of the 'floppy' group.
I guess I have answered my own question here and can mark this thread as Solved.

It does raise another question though for which I will start a new thread.
regards.